<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>圆角图片</title>
	</head>
	
	<style>
		#user{
			border:1px solid;
			width:150px;
			height:150px;
			background-image:url(images/qr.png);
			border-radius:100px;

		}
		ul{
			list-style:none;
		}
		li{
			float:left;
			margin-right:10px;
			background-color:red;
			padding:5px 10px 5px 10px;
			border-radius:5px;
		}
		a{
			text-decoration:none;
			color:white;
		}
		li:hover{
			background:blue;
		}
	</style>
	
	
	<body>
		<h3>圆角测试</h3>
		<div id = "user"></div>
		<ul>
			<li>
				<a href="https://www.w3school.com.cn/" target="_blank">
					W3CShool
				</a>
			</li>
			<li>
				<a href="https://www.runoob.com/" target="_blank">
					菜鸟教程
				</a>
			</li>
			<li>
				<a href="">
					CSDN
				</a>
			</li>
			<li><a>思否</a></li>
			<li><a>Java培优</a></li>
		</ul>
		


		
	</body>
</html>
